I have a ring of purple mushrooms growing in my back garden. I have examined them very carefully and they seem to match almost all of the wood blewit identification points - can you help me identify them?

Matching features:- similarly lilac all over, though the caps of the larger ones are more brown- growing in a fairy ring- growing in grass in my back garden (in Sheffield)- have sinuate gills- showed a faint white spore print on white paper- gills detached from the cap fairly easily- fairly wavy caps when older- stem is covered by lilac fibrils- top of cap was somewhat gelatinous when wet- become lighter when dry- flesh is lightly tinged violet- in season

Questionable features:- don't really swell at the base of the stem- don't smell of anything- seem quite delicate and slender

Yep, certainly look like blewies alright. Stick them in a bag and have a really good sniff, they should smell fragrant with a hint of chalk (a smell you should remember). To avoid confusing them with the belly-acher, cortinarius purpurascens, watch out on young samples that they don't have a cobweb like veil over the gills.